package com.effect.part1_ObjectCrateDestroy.item1;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * Created by jon on 17-10-7.
 */
public class MapUtil {
    Map<String, List<String>> m = new HashMap<>();

    public static <K, V> HashMap<K, V> newInstance() {
        return new HashMap<K, V>();
    }

    public static void main(String[] args) {
         Long sum = 0L;
         for (long i=0;i<Integer.MAX_VALUE;i++)
             sum+=i;
        System.out.println(sum);
    }

}
